Zack Snyder has admitted that he doesn't know if his Superman movie will be shot in 3D.

Speaking to Digital Spy to promote his latest film, 3D owl animation Legend Of The Guardians, the director suggested that he would use the format as long as it wasn't just "a gimmick".

He said: "I don't know for sure, I can't say for sure but I will say that the experience of the 3D in Guardians was so successful for what I wanted it to do. I think that 3D is pretty awesome if it's done as part of the cinematic language as opposed to being a gimmick."

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Snyder's wife and co-producer Deborah Snyder said that it was "really just too early to tell" if the superhero blockbuster would be in 3D, although she admitted that she was looking forward to teaming up with producers Christopher Nolan and Emma Thomas.

"We have such enormous respect for Chris and Emma and their work," she said. "We've been such fans and we're just thrilled to be working with them."

Discussing past incarnations of the Man of Steel and their relation to his revamp, Zack Snyder commented: "I like the Donner version. It's hard not to like it, it's so awesome but I don't think this will have anything to do with any of those."